Do you know the acceptance standard of gabion net?
Published:
2021-01-19
Gabion net is a special kind of barbed wire net used in water conservancy project. Because its application range is not very wide, it is not well known to people, so it is not well known about its acceptance standard Let's introduce its acceptance criteria below
Gabion net is a special kind of barbed wire product used in water conservancy projects. Because of its limited application range, it is not well known to people, and it is not very clear about its acceptance criteria. Let me introduce to you what the acceptance criteria are.
The mesh surface of the gabion mesh is not allowed to have holes, the galvanized layer cannot be rusted, and the plastic-coated skin cannot be damaged. This is a project that can be completed by visual inspection. The measurement of hole size, wire diameter size, etc. has worked. Drawing design generally needs to give specific specifications and sizes, and clearly indicate the tolerance size. Any design drawings without these instructions are not rigorous. At present, the commonly used gabion mesh design standards in my country are: EN 10223-3 European standard and YB /T 4190-2009 People's Republic of China ferrous metallurgical industry standard, they have different tolerance requirements for the mesh, the former is +16%, -4%, the latter is plus or minus 5%, the difference is very big, we must pay attention to the distinction.
Gabion nets are often made into cages in water conservancy projects. There are usually two types of cages: cuboid or cube cages and bag-shaped nets. After completing the above mesh inspection, the next step is to check and accept the size of the cage. Generally, it is required to check and accept according to the plus or minus 5% tolerance of the design drawings, but there are also special circumstances. Generally, when the height of the box is less than 30 cm, a height tolerance is required. Do not exceed plus or minus 10%. After the basic inspection and acceptance of the gabion net, it must be sampled by a professional organization. The completed authoritative inspection is also a key step in whether the product is qualified or not.
key word:
Gabion net
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